BAMBOO

by Mark Steere

INTRODUCTION

Bamboo is a two player game played on an initially empty hexagonal grid. The two players, Red and Blue, place their own stones onto unoccupied cells on the board, one stone per turn. Players are not allowed to pass. Mark Steere designed Bamboo in March, 2021.

PLACEMENTS

A group is comprised of one or more interconnected, like colored stones.

A player’s group can’t contain more stones than the number of groups he has. See Figures 1 and 2.

Fig. 1 – Red’s turn.
All of Red’s available placements are indicated in green. Red can merge his groups, and so reduce his number of groups, but only in a way that doesn’t violate the rules.
Fig. 2 – Blue’s turn.
All of Blue’s available placements are indicated in green.

OBJECT OF THE GAME

The last player to place a stone wins.

AUTHOR’S NOTE

Feel free to publish this rule sheet and to program the game of Bamboo. No licensing fee or royalties are expected. However, please don’t change the name or the rules, and please attribute the game to me, Mark Steere. My other games can be found at marksteeregames.com.

Copyright © 2021 Mark Steere

ABOUT THIS APP

Six computer levels. Level 1 plays at random. Levels 2 and 3 think with a few random playouts and choose loosely among the moves they liked. Levels 4 and 5 think harder and take the move they liked best. Level 6, Unbeatable, thinks for three seconds with as many playouts as fit, and plays perfectly once the end of the game is within reach of an exact search.

The number of groups each player has is shown under the board. Green dots mark the cells where a stone may be placed. Undo takes back your last move. Hint marks the move that level 6 would play.